Here is a list of why the PS4 is the best next gen choice for Destiny:
1. PS4 is more powerful (1.8 vs 1.3 Teraflops) (http://au.ign.com/blogs/finalverdict/2013/10/26/xbox-one-vs-playstation-4-hardware-and-specifications/)
2. PS4 has faster GDDR5 Memory, which has twice the throughput of the ddr3 found in the xbone (http://au.ign.com/blogs/finalverdict/2013/10/26/xbox-one-vs-playstation-4-hardware-and-specifications/)
3. PS4 cheaper to buy (Why would someone pay more for a less powerful system?)
4. PS4 has more games than any other next gen system (http://en.wikipedia.org/wiki/List_of_PlayStation_4_games)
5. PS+ is better value (6 free games a month, across 3 platforms. It’s also cheaper than Live and has a better selection of games) http://en.wikipedia.org/wiki/List_of_Instant_Game_Collection_games_(PAL_region))
6. PS4 is 3 times more popular than the xbone (http://www.vg247.com/2014/07/31/playstation-consoles-outselling-xbox-by-more-than-31/)
7. Has a player base that is 3 times bigger, as a result
8. All cross platform games look and perform better on the PS4 (name a single cross platform game that looks/performs better on xbone, bet you can’t) Here is the proof: http://m.au.ign.com/wikis/xbox-one/PS4_vs._Xbox_One_Native_Resolutions_and_Framerates
9. PS4 is focused on games. Doesn’t have focus on TV and Sports like the xbone does (https://www.youtube.com/watch?v=KbWgUO-Rqcw)
10. The xbone Dashboard is filled with advertisements http://www.sticktwiddlers.com/2013/06/28/xbox-one-dashboard-created-with-advertising-in-mind/
11. The xbone Dashboard in general is a complete mess that is hard to navigate (http://www.edge-online.com/features/xbox-why-the-baffling-incompetence-of-the-xbox-one-interface/)
12. PS4 didn’t make you buy a kinnect and then remove support for it 6 months later, effectivity screwing over early adopters
13. All Microsoft cares about is feeding you more ads https://www.youtube.com/watch?v=ixqwOIByMAc&app=desktop
14. DixectX12 will not save the xbone or help game run at 1080p http://www.extremetech.com/gaming/187549-directx-12-is-coming-next-year-but-it-probably-wont-help-xbox-one-games-run-at-1080p
15. PlayStation platforms have exclusive content in Destiny
16. PS4 is the lead platform for Destiny
17. PS4 has the largest player base in Destiny of any of the 4 platforms, has more pre-orders than any other platform
18. Was able to render the Alpha and Beta in full HD 1080p, so there won’t be any nasty surprises when the game is fully released
19. Has controllers which don’t require AA batteries or firmware updates
20. PS4 doesn’t have a giant external power brick and the console itself is much smaller